It is easy to install on both new and existing tanks.
Floating roof tank grounding.
216 v to 250 v power rating.
Studies by the api american petroleum institute have shown these shunts often fail to provide the required contact between the roof and wall.
The rga is able to do this better than other methods because designers analysed and found ways to overcome the weaknesses of other traditional devices for grounding floating roof tanks.
The source of ignition is often atmospheric electricity.
In principle this eliminates tank breathing loss and greatly reduces the evaporative lo.
Floating roof tank shunts shown in the image above used for many years as the default method to earth out ground the roof to the tank wall.
An external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate.
Poor tank turnaround practices with inadequate checking of roof supports.
108 v to 125 v 220 240 v 50 60 hz system supply voltage range.
Most fires on floating roof tanks are small rim fires caused by vapor leaking through the seals.
Floating roof tanks seals on floating roof fr shall be bonded to the shell by shunts type 302 28 gauge 2 inch wide stainless steel straps at maximum 10 ft spacing all metal tanks all must be grounded by one of the following.
Lec has developed a roof shell bonding mechanism that fulfills all of these requirements.
The lec retractable grounding assembly rga provides the lowest possible impedance bond between the floating roof and tank shell.
It consists of an open topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid.
There was a fatality on a large diameter floating roof tank when a contractor died under the weight of the roof plates which collapsed on him.
The atex approved patented retractable grounding assembly rga substantially reduces the risk of tank fires by subduing sustained arcs during lightning events and other electrical phenomena.
110 120 v 50 60 hz system supply voltage range.
It is also easy to inspect test and maintain.
As opposed to a fixed roof tank there is no vapor space in the floating roof tank.
Storagetech storage tank internal floating roofs storagetech has been proudly innovating designing manufactiring and installing external and internal pon.
Groundguardian floating roof tank monitor reel.
Failures of floating roof primary and secondary seals foam filled or liquid filled have been a significant concern.
1 tank connected without insulating joints to a grounded metallic piping system.
They are prone to wear issues as well as being sensitive to tank deformation.
Temperature rating 25 c to 55 c.